Final answer:
The statement relates to signboard advertising. One large picture is more effective because it captures attention and conveys a message quickly.
Step-by-step explanation:
The statement that one large picture is generally more effective than several smaller pictures relates to signboard advertising.
Signboard advertising, such as billboards or posters, aims to capture people's attention quickly and communicate a message with impact. A large picture can be easily seen from a distance and make a strong visual impact on viewers, making it more effective in conveying the intended message.
For example, in urban environments where posters are encountered briefly, they need to be simple, bold, and eye-catching. A single large picture can effectively capture attention and communicate a message quickly.